<!DOCTYPE html>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1204147
-->
<head>
  <title>Test for Bug 1204147</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" href="/tests/SimpleTest/test.css">
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1204147">Mozilla Bug 1204147</a>
<p id="display"></p>
<iframe id="content"></iframe>
</div>

<pre id="test">
<script class="testbody" type="text/javascript">

/** Test for Bug 1204147 **/
SimpleTest.waitForExplicitFinish();
var content = document.getElementById('content');
// Load a subframe containing an editor with using "en-GB". At first
// load, it will set the dictionary to "en-GB". The bug was that a content preference
// was also created. At second load, we check the dictionary for another element,
// one that should use "en-US". With the bug corrected, we get "en-US", before
// we got "en-GB" from the content preference.

var firstLoad = true;
var script;

var loadListener = function(evt) {
  if (firstLoad) {
    script = SpecialPowers.loadChromeScript(function() {
      var dir = Components.classes["@mozilla.org/file/directory_service;1"]
                          .getService(Components.interfaces.nsIProperties)
                          .get("CurWorkD", Components.interfaces.nsIFile);
      dir.append("tests");
      dir.append("editor");
      dir.append("composer");
      dir.append("test");

      var hunspell = Components.classes["@mozilla.org/spellchecker/engine;1"]
                               .getService(Components.interfaces.mozISpellCheckingEngine);

      // Install en-GB dictionary.
      en_GB = dir.clone();
      en_GB.append("en-GB");
      hunspell.addDirectory(en_GB);

      addMessageListener("en_GB-exists", () => en_GB.exists());
      addMessageListener("destroy", () => hunspell.removeDirectory(en_GB));
    });
    is(script.sendSyncMessage("en_GB-exists")[0][0], true,
       "true expected (en-GB directory should exist)");
  }

  var doc = evt.target.contentDocument;
  var elem;
  if (firstLoad) {
    elem = doc.getElementById('en-GB');
  } else {
    elem = doc.getElementById('en-US');
  }

  var editor = SpecialPowers.wrap(elem).QueryInterface(SpecialPowers.Ci.nsIDOMNSEditableElement).editor;
  editor.setSpellcheckUserOverride(true);
  var inlineSpellChecker = editor.getInlineSpellChecker(true);

  SpecialPowers.Cu.import("resource://gre/modules/AsyncSpellCheckTestHelper.jsm")
  .onSpellCheck(elem, function () {
    var spellchecker = inlineSpellChecker.spellChecker;
    try {
      var currentDictonary = spellchecker.GetCurrentDictionary();
    } catch(e) {}

    if (firstLoad) {
      firstLoad = false;

       // First time around, the element's language should be used.
      is (currentDictonary, "en-GB", "unexpected lang " + currentDictonary + " instead of en-GB");

      // Note that on second load, we load a different page, which does NOT have the trouble-causing
      // contenteditable in it. Sadly, loading the same page with the trouble-maker in it
      // doesn't allow the retrieval of the spell check dictionary used for the element,
      // because the trouble-maker causes the 'global' spell check dictionary to be set to "en-GB"
      // (since it picks the first one from the list) before we have the chance to retrieve
      // the dictionary for the element (which happens asynchonously after the spell check has completed).
      content.src = 'http://mochi.test:8888/tests/editor/composer/test/bug1204147_subframe2.html?firstload=false';
    } else {
      // Second time around, the element should default to en-US.
      // Without the fix, the first run sets the content preference to en-GB for the whole site.
      is (currentDictonary, "en-US", "unexpected lang " + currentDictonary + " instead of en-US");
      content.removeEventListener('load', loadListener, false);

      // Remove the fake en-GB dictionary again, since it's otherwise picked up by later tests.
      script.sendSyncMessage("destroy");

      // Reset the preference, so the last value we set doesn't collide with the next test.
      SimpleTest.finish();
    }
  });
}

content.addEventListener('load', loadListener, false);

content.src = 'http://mochi.test:8888/tests/editor/composer/test/bug1204147_subframe.html?firstload=true';

</script>
</pre>
</body>
</html>
